RHSA-2026:98109: Critical: python-pillow security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.Security Fix(es): pillow: Pillow: Heap buffer overflow in tiffWriteProc when saving TIFF to BytesIO (CVE-2026-112393) pillow: Pillow: Denial of Service via unbounded recursion in PDF parser (CVE-2026-112391) pillow: pillow: Denial of service via double free during image transformation (CVE-2026-112402) pillow: pillow: Denial of Service via zero-size images in rank filters (CVE-2026-112392) pillow: Pillow: Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code execution (CVE-2026-112398) pillow: pillow: Denial of Service via out-of-bounds memory access on zero-width images (CVE-2026-112397) pillow: Pillow: Denial of Service via null pointer dereference in Image.merge() (CVE-2026-112405) pillow: pillow: Denial of Service via crafted multi-frame image conversion (CVE-2026-112894) pillow: pillow: Denial of service via crafted PDF during append operations (CVE-2026-112895) pillow: Pillow: Argument Injection in Ghostscript call, potentially leading into RCE (CVE-2026-112900) pillow: pillow: Denial of Service via infinite loop during PDF page rewriting (CVE-2026-112406) pillow: pillow: Denial of Service via duplicate page references in PDF files (CVE-2026-96640) pillow: pillow: Denial of Service via unbounded memory expansion in MSP image decoder (CVE-2026-112892) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat